<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    <!-- 单选选择框 -->
    <p>单选选择框的内容: {{ value6 }}</p>
    <select v-model="value6">
      <option value="">请选择</option>
      <option value="1">选项1</option>
      <option value="2">选项2</option>
      <option value="3">选项3</option>
    </select>

    <!-- 多选选择框 -->
    <p>多选选择框的内容：{{ value7 }}</p>
    <select v-model="value7" multiple>
      <option value="1">选项1</option>
      <option value="2">选项2</option>
      <option value="3">选项3</option>
    </select>
  </div>
  <script src="lib/vue.js"></script>
  <script>
    var vm = new Vue({
      el: '#app',
      data: {
        value6: '',
        value7: []
      }
    });
  </script>
</body>
</html>